/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2017, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * Original Author:  Arnaud Roques
 * 
 * Revision $Revision: 5041 $
 *
 */
package net.sourceforge.plantuml.command;

import java.util.Iterator;
import java.util.List;

import net.sourceforge.plantuml.StringUtils;

public enum MultilinesStrategy {
	REMOVE_STARTING_QUOTE, KEEP_STARTING_QUOTE;

	public void cleanList(List<? extends CharSequence> lines) {
		if (this == REMOVE_STARTING_QUOTE) {
			filterQuote(lines);
		}
	}

	private void filterQuote(List<? extends CharSequence> lines) {
		for (final Iterator<? extends CharSequence> it = lines.iterator(); it.hasNext();) {
			final CharSequence s = it.next();
			if (hasStartingQuote(s)) {
				it.remove();
			}
		}
	}

	private boolean hasStartingQuote(CharSequence s) {
		return StringUtils.trinNoTrace(s).startsWith("\'");
	}
}
